files/directory.c

   1 /*
   2  * DOS directories functions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #include "config.h"
   8
   9 #include <ctype.h>
  10 #include <stdlib.h>
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <sys/types.h>
  14 #include <sys/stat.h>
  15 #include <unistd.h>
  16 #include <errno.h>
  17 #ifdef HAVE_SYS_ERRNO_H
  18 #include <sys/errno.h>
  19 #endif
  20
  21 #include "winbase.h"
  22 #include "wine/winbase16.h"
  23 #include "wine/winestring.h"
  24 #include "windef.h"
  25 #include "wingdi.h"
  26 #include "wine/winuser16.h"
  27 #include "winerror.h"
  28 #include "drive.h"
  29 #include "file.h"
  30 #include "heap.h"
  31 #include "msdos.h"
  32 #include "options.h"
  33 #include "debugtools.h"
  34
  35 DEFAULT_DEBUG_CHANNEL(dosfs);
  36 DECLARE_DEBUG_CHANNEL(file);
  37
  38 static DOS_FULL_NAME DIR_Windows;
  39 static DOS_FULL_NAME DIR_System;
  40
  41
  42 /***********************************************************************
  43  *           DIR_GetPath
  44  *
  45  * Get a path name from the wine.ini file and make sure it is valid.
  46  */
  47 static int DIR_GetPath( const char *keyname, const char *defval,
  48                         DOS_FULL_NAME *full_name )
  49 {
  50     char path[MAX_PATHNAME_LEN];
  51     BY_HANDLE_FILE_INFORMATION info;
  52
  53     PROFILE_GetWineIniString( "wine", keyname, defval, path, sizeof(path) );
  54     if (!DOSFS_GetFullName( path, TRUE, full_name ) ||
  55         !FILE_Stat( full_name->long_name, &info ) ||
  56         !(info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
  57     {
  58         MESSAGE("Invalid path '%s' for %s directory\n", path, keyname);
  59         return 0;
  60     }
  61     return 1;
  62 }
  63
  64
  65 /***********************************************************************
  66  *           DIR_Init
  67  */
  68 int DIR_Init(void)
  69 {
  70     char path[MAX_PATHNAME_LEN];
  71     DOS_FULL_NAME tmp_dir, profile_dir;
  72     int drive;
  73     const char *cwd;
  74
  75     if (!getcwd( path, MAX_PATHNAME_LEN ))
  76     {
  77         perror( "Could not get current directory" );
  78         return 0;
  79     }
  80     cwd = path;
  81     if ((drive = DRIVE_FindDriveRoot( &cwd )) == -1)
  82     {
  83         MESSAGE("Warning: could not find wine.conf [Drive x] entry "
  84             "for current working directory %s; "
  85             "starting in windows directory.\n", cwd );
  86     }
  87     else
  88     {
  89         DRIVE_SetCurrentDrive( drive );
  90         DRIVE_Chdir( drive, cwd );
  91     }
  92
  93     if (!(DIR_GetPath( "windows", "c:\\windows", &DIR_Windows )) ||
  94         !(DIR_GetPath( "system", "c:\\windows\\system", &DIR_System )) ||
  95         !(DIR_GetPath( "temp", "c:\\windows", &tmp_dir )))
  96     {
  97         PROFILE_UsageWineIni();
  98         return 0;
  99     }
 100     if (-1 == access( tmp_dir.long_name, W_OK ))
 101     {
 102         if (errno==EACCES)
 103         {
 104                 MESSAGE("Warning: The Temporary Directory (as specified in your configuration file) is NOT writeable.\n");
 105                 PROFILE_UsageWineIni();
 106         }
 107         else
 108                 MESSAGE("Warning: Access to Temporary Directory failed (%s).\n",
 109                     strerror(errno));
 110     }
 111
 112     if (drive == -1)
 113     {
 114         drive = DIR_Windows.drive;
 115         DRIVE_SetCurrentDrive( drive );
 116         DRIVE_Chdir( drive, DIR_Windows.short_name + 2 );
 117     }
 118
 119     PROFILE_GetWineIniString("wine", "path", "c:\\windows;c:\\windows\\system",
 120                              path, sizeof(path) );
 121     if (strchr(path, '/'))
 122     {
 123         MESSAGE("No '/' allowed in [wine] 'Path=' statement of wine.conf !\n");
 124         PROFILE_UsageWineIni();
 125         ExitProcess(1);
 126     }
 127
 128     /* Set the environment variables */
 129
 130     SetEnvironmentVariableA( "PATH", path );
 131     SetEnvironmentVariableA( "TEMP", tmp_dir.short_name );
 132     SetEnvironmentVariableA( "windir", DIR_Windows.short_name );
 133     SetEnvironmentVariableA( "winsysdir", DIR_System.short_name );
 134
 135     /* set COMSPEC only if it doesn't exist already */
 136     if (!GetEnvironmentVariableA( "COMSPEC", NULL, 0 ))
 137         SetEnvironmentVariableA( "COMSPEC", "c:\\command.com" );
 138
 139     TRACE("WindowsDir = %s (%s)\n",
 140           DIR_Windows.short_name, DIR_Windows.long_name );
 141     TRACE("SystemDir  = %s (%s)\n",
 142           DIR_System.short_name, DIR_System.long_name );
 143     TRACE("TempDir    = %s (%s)\n",
 144           tmp_dir.short_name, tmp_dir.long_name );
 145     TRACE("Path       = %s\n", path );
 146     TRACE("Cwd        = %c:\\%s\n",
 147           'A' + drive, DRIVE_GetDosCwd( drive ) );
 148
 149     if (DIR_GetPath( "profile", "", &profile_dir ))
 150     {
 151         TRACE("USERPROFILE= %s\n", profile_dir.short_name );
 152         SetEnvironmentVariableA( "USERPROFILE", profile_dir.short_name );
 153     }
 154
 155     TRACE("SYSTEMROOT = %s\n", DIR_Windows.short_name );
 156     SetEnvironmentVariableA( "SYSTEMROOT", DIR_Windows.short_name );
 157
 158     return 1;
 159 }
 160
 161
 162 /***********************************************************************
 163  *           GetTempPathA   (KERNEL32.292)
 164  */
 165 UINT WINAPI GetTempPathA( UINT count, LPSTR path )
 166 {
 167     UINT ret;
 168     if (!(ret = GetEnvironmentVariableA( "TMP", path, count )))
 169         if (!(ret = GetEnvironmentVariableA( "TEMP", path, count )))
 170             if (!(ret = GetCurrentDirectoryA( count, path )))
 171                 return 0;
 172     if (count && (ret < count - 1) && (path[ret-1] != '\\'))
 173     {
 174         path[ret++] = '\\';
 175         path[ret]   = '\0';
 176     }
 177     return ret;
 178 }
 179
 180
 181 /***********************************************************************
 182  *           GetTempPathW   (KERNEL32.293)
 183  */
 184 UINT WINAPI GetTempPathW( UINT count, LPWSTR path )
 185 {
 186     static const WCHAR tmp[]  = { 'T', 'M', 'P', 0 };
 187     static const WCHAR temp[] = { 'T', 'E', 'M', 'P', 0 };
 188     UINT ret;
 189     if (!(ret = GetEnvironmentVariableW( tmp, path, count )))
 190         if (!(ret = GetEnvironmentVariableW( temp, path, count )))
 191             if (!(ret = GetCurrentDirectoryW( count, path )))
 192                 return 0;
 193     if (count && (ret < count - 1) && (path[ret-1] != '\\'))
 194     {
 195         path[ret++] = '\\';
 196         path[ret]   = '\0';
 197     }
 198     return ret;
 199 }
 200
 201
 202 /***********************************************************************
 203  *           DIR_GetWindowsUnixDir
 204  */
 205 UINT DIR_GetWindowsUnixDir( LPSTR path, UINT count )
 206 {
 207     if (path) lstrcpynA( path, DIR_Windows.long_name, count );
 208     return strlen( DIR_Windows.long_name );
 209 }
 210
 211
 212 /***********************************************************************
 213  *           DIR_GetSystemUnixDir
 214  */
 215 UINT DIR_GetSystemUnixDir( LPSTR path, UINT count )
 216 {
 217     if (path) lstrcpynA( path, DIR_System.long_name, count );
 218     return strlen( DIR_System.long_name );
 219 }
 220
 221
 222 /***********************************************************************
 223  *           GetTempDrive   (KERNEL.92)
 224  */
 225 BYTE WINAPI GetTempDrive( BYTE ignored )
 226 {
 227     char *buffer;
 228     BYTE ret;
 229     UINT len = GetTempPathA( 0, NULL );
 230
 231     if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len + 1 )) )
 232       return DRIVE_GetCurrentDrive() + 'A';
 233
 234     /* FIXME: apparently Windows does something with the ignored byte */
 235     if (!GetTempPathA( len, buffer )) buffer[0] = 'C';
 236     ret = buffer[0];
 237     HeapFree( GetProcessHeap(), 0, buffer );
 238     return toupper(ret);
 239 }
 240
 241
 242 UINT WINAPI WIN16_GetTempDrive( BYTE ignored )
 243 {
 244     /* A closer look at krnl386.exe shows what the SDK doesn't mention:
 245      *
 246      * returns:
 247      *   AL: driveletter
 248      *   AH: ':'                - yes, some kernel code even does stosw with
 249      *                            the returned AX.
 250      *   DX: 1 for success
 251      */
 252     return MAKELONG( GetTempDrive(ignored) | (':' << 8), 1 );
 253 }
 254
 255
 256 /***********************************************************************
 257  *           GetWindowsDirectory16   (KERNEL.134)
 258  */
 259 UINT16 WINAPI GetWindowsDirectory16( LPSTR path, UINT16 count )
 260 {
 261     return (UINT16)GetWindowsDirectoryA( path, count );
 262 }
 263
 264
 265 /***********************************************************************
 266  *           GetWindowsDirectoryA   (KERNEL32.311)
 267  */
 268 UINT WINAPI GetWindowsDirectoryA( LPSTR path, UINT count )
 269 {
 270     if (path) lstrcpynA( path, DIR_Windows.short_name, count );
 271     return strlen( DIR_Windows.short_name );
 272 }
 273
 274
 275 /***********************************************************************
 276  *           GetWindowsDirectoryW   (KERNEL32.312)
 277  */
 278 UINT WINAPI GetWindowsDirectoryW( LPWSTR path, UINT count )
 279 {
 280     if (path) lstrcpynAtoW( path, DIR_Windows.short_name, count );
 281     return strlen( DIR_Windows.short_name );
 282 }
 283
 284
 285 /***********************************************************************
 286  *           GetSystemWindowsDirectoryA   (KERNEL32) W2K, TS4.0SP4
 287  */
 288 UINT WINAPI GetSystemWindowsDirectoryA( LPSTR path, UINT count )
 289 {
 290     return GetWindowsDirectoryA( path, count );
 291 }
 292
 293
 294 /***********************************************************************
 295  *           GetSystemWindowsDirectoryW   (KERNEL32) W2K, TS4.0SP4
 296  */
 297 UINT WINAPI GetSystemWindowsDirectoryW( LPWSTR path, UINT count )
 298 {
 299     return GetWindowsDirectoryW( path, count );
 300 }
 301
 302
 303 /***********************************************************************
 304  *           GetSystemDirectory16   (KERNEL.135)
 305  */
 306 UINT16 WINAPI GetSystemDirectory16( LPSTR path, UINT16 count )
 307 {
 308     return (UINT16)GetSystemDirectoryA( path, count );
 309 }
 310
 311
 312 /***********************************************************************
 313  *           GetSystemDirectoryA   (KERNEL32.282)
 314  */
 315 UINT WINAPI GetSystemDirectoryA( LPSTR path, UINT count )
 316 {
 317     if (path) lstrcpynA( path, DIR_System.short_name, count );
 318     return strlen( DIR_System.short_name );
 319 }
 320
 321
 322 /***********************************************************************
 323  *           GetSystemDirectoryW   (KERNEL32.283)
 324  */
 325 UINT WINAPI GetSystemDirectoryW( LPWSTR path, UINT count )
 326 {
 327     if (path) lstrcpynAtoW( path, DIR_System.short_name, count );
 328     return strlen( DIR_System.short_name );
 329 }
 330
 331
 332 /***********************************************************************
 333  *           CreateDirectory16   (KERNEL.144)
 334  */
 335 BOOL16 WINAPI CreateDirectory16( LPCSTR path, LPVOID dummy )
 336 {
 337     TRACE_(file)("(%s,%p)\n", path, dummy );
 338     return (BOOL16)CreateDirectoryA( path, NULL );
 339 }
 340
 341
 342 /***********************************************************************
 343  *           CreateDirectoryA   (KERNEL32.39)
 344  * RETURNS:
 345  *      TRUE : success
 346  *      FALSE : failure
 347  *              ERROR_DISK_FULL:        on full disk
 348  *              ERROR_ALREADY_EXISTS:   if directory name exists (even as file)
 349  *              ERROR_ACCESS_DENIED:    on permission problems
 350  *              ERROR_FILENAME_EXCED_RANGE: too long filename(s)
 351  */
 352 BOOL WINAPI CreateDirectoryA( LPCSTR path,
 353                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 354 {
 355     DOS_FULL_NAME full_name;
 356
 357     TRACE_(file)("(%s,%p)\n", path, lpsecattribs );
 358     if (DOSFS_GetDevice( path ))
 359     {
 360         TRACE_(file)("cannot use device '%s'!\n",path);
 361         SetLastError( ERROR_ACCESS_DENIED );
 362         return FALSE;
 363     }
 364     if (!DOSFS_GetFullName( path, FALSE, &full_name )) return 0;
 365     if (mkdir( full_name.long_name, 0777 ) == -1) {
 366         WARN_(file)("Errno %i trying to create directory %s.\n", errno, full_name.long_name);
 367         /* the FILE_SetDosError() generated error codes don't match the
 368          * CreateDirectory ones for some errnos */
 369         switch (errno) {
 370         case EEXIST: SetLastError(ERROR_ALREADY_EXISTS); break;
 371         case ENOSPC: SetLastError(ERROR_DISK_FULL); break;
 372         default: FILE_SetDosError();break;
 373         }
 374         return FALSE;
 375     }
 376     return TRUE;
 377 }
 378
 379
 380 /***********************************************************************
 381  *           CreateDirectoryW   (KERNEL32.42)
 382  */
 383 BOOL WINAPI CreateDirectoryW( LPCWSTR path,
 384                                   LPSECURITY_ATTRIBUTES lpsecattribs )
 385 {
 386     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 387     BOOL ret = CreateDirectoryA( xpath, lpsecattribs );
 388     HeapFree( GetProcessHeap(), 0, xpath );
 389     return ret;
 390 }
 391
 392
 393 /***********************************************************************
 394  *           CreateDirectoryExA   (KERNEL32.40)
 395  */
 396 BOOL WINAPI CreateDirectoryExA( LPCSTR template, LPCSTR path,
 397                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 398 {
 399     return CreateDirectoryA(path,lpsecattribs);
 400 }
 401
 402
 403 /***********************************************************************
 404  *           CreateDirectoryExW   (KERNEL32.41)
 405  */
 406 BOOL WINAPI CreateDirectoryExW( LPCWSTR template, LPCWSTR path,
 407                                     LPSECURITY_ATTRIBUTES lpsecattribs)
 408 {
 409     return CreateDirectoryW(path,lpsecattribs);
 410 }
 411
 412
 413 /***********************************************************************
 414  *           RemoveDirectory16   (KERNEL)
 415  */
 416 BOOL16 WINAPI RemoveDirectory16( LPCSTR path )
 417 {
 418     return (BOOL16)RemoveDirectoryA( path );
 419 }
 420
 421
 422 /***********************************************************************
 423  *           RemoveDirectoryA   (KERNEL32.437)
 424  */
 425 BOOL WINAPI RemoveDirectoryA( LPCSTR path )
 426 {
 427     DOS_FULL_NAME full_name;
 428
 429     TRACE_(file)("'%s'\n", path );
 430
 431     if (DOSFS_GetDevice( path ))
 432     {
 433         TRACE_(file)("cannot remove device '%s'!\n", path);
 434         SetLastError( ERROR_FILE_NOT_FOUND );
 435         return FALSE;
 436     }
 437     if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
 438     if (rmdir( full_name.long_name ) == -1)
 439     {
 440         FILE_SetDosError();
 441         return FALSE;
 442     }
 443     return TRUE;
 444 }
 445
 446
 447 /***********************************************************************
 448  *           RemoveDirectoryW   (KERNEL32.438)
 449  */
 450 BOOL WINAPI RemoveDirectoryW( LPCWSTR path )
 451 {
 452     LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 453     BOOL ret = RemoveDirectoryA( xpath );
 454     HeapFree( GetProcessHeap(), 0, xpath );
 455     return ret;
 456 }
 457
 458
 459 /***********************************************************************
 460  *           DIR_TryPath
 461  *
 462  * Helper function for DIR_SearchPath.
 463  */
 464 static BOOL DIR_TryPath( const DOS_FULL_NAME *dir, LPCSTR name,
 465                            DOS_FULL_NAME *full_name )
 466 {
 467     LPSTR p_l = full_name->long_name + strlen(dir->long_name) + 1;
 468     LPSTR p_s = full_name->short_name + strlen(dir->short_name) + 1;
 469
 470     if ((p_s >= full_name->short_name + sizeof(full_name->short_name) - 14) ||
 471         (p_l >= full_name->long_name + sizeof(full_name->long_name) - 1))
 472     {
 473         SetLastError( ERROR_PATH_NOT_FOUND );
 474         return FALSE;
 475     }
 476     if (!DOSFS_FindUnixName( dir->long_name, name, p_l,
 477                    sizeof(full_name->long_name) - (p_l - full_name->long_name),
 478                    p_s, !(DRIVE_GetFlags(dir->drive) & DRIVE_CASE_SENSITIVE) ))
 479         return FALSE;
 480     strcpy( full_name->long_name, dir->long_name );
 481     p_l[-1] = '/';
 482     strcpy( full_name->short_name, dir->short_name );
 483     p_s[-1] = '\\';
 484     return TRUE;
 485 }
 486
 487
 488 /***********************************************************************
 489  *           DIR_TryEnvironmentPath
 490  *
 491  * Helper function for DIR_SearchPath.
 492  * Search in the specified path, or in $PATH if NULL.
 493  */
 494 static BOOL DIR_TryEnvironmentPath( LPCSTR name, DOS_FULL_NAME *full_name, LPCSTR envpath )
 495 {
 496     LPSTR path, next, buffer;
 497     BOOL ret = FALSE;
 498     INT len = strlen(name);
 499     DWORD size;
 500
 501     size = envpath ? strlen(envpath)+1 : GetEnvironmentVariableA( "PATH", NULL, 0 );
 502     if (!size) return FALSE;
 503     if (!(path = HeapAlloc( GetProcessHeap(), 0, size ))) return FALSE;
 504     if (envpath) strcpy( path, envpath );
 505     else if (!GetEnvironmentVariableA( "PATH", path, size )) goto done;
 506     next = path;
 507     while (!ret && next)
 508     {
 509         LPSTR cur = next;
 510         while (*cur == ';') cur++;
 511         if (!*cur) break;
 512         next = strchr( cur, ';' );
 513         if (next) *next++ = '\0';
 514         if (!(buffer = HeapAlloc( GetProcessHeap(), 0, strlen(cur) + len + 2)))
 515             goto done;
 516         strcpy( buffer, cur );
 517         strcat( buffer, "\\" );
 518         strcat( buffer, name );
 519         ret = DOSFS_GetFullName( buffer, TRUE, full_name );
 520         HeapFree( GetProcessHeap(), 0, buffer );
 521     }
 522
 523 done:
 524     HeapFree( GetProcessHeap(), 0, path );
 525     return ret;
 526 }
 527
 528
 529 /***********************************************************************
 530  *           DIR_TryModulePath
 531  *
 532  * Helper function for DIR_SearchPath.
 533  */
 534 static BOOL DIR_TryModulePath( LPCSTR name, DOS_FULL_NAME *full_name, BOOL win32 )
 535 {
 536     /* FIXME: for now, GetModuleFileNameA can't return more */
 537     /* than OFS_MAXPATHNAME. This may change with Win32. */
 538
 539     char buffer[OFS_MAXPATHNAME];
 540     LPSTR p;
 541
 542     if (!win32)
 543     {
 544         if (!GetCurrentTask()) return FALSE;
 545         if (!GetModuleFileName16( GetCurrentTask(), buffer, sizeof(buffer) ))
 546                 buffer[0]='\0';
 547     } else {
 548         if (!GetModuleFileNameA( 0, buffer, sizeof(buffer) ))
 549                 buffer[0]='\0';
 550     }
 551     if (!(p = strrchr( buffer, '\\' ))) return FALSE;
 552     if (sizeof(buffer) - (++p - buffer) <= strlen(name)) return FALSE;
 553     strcpy( p, name );
 554     return DOSFS_GetFullName( buffer, TRUE, full_name );
 555 }
 556
 557
 558 /***********************************************************************
 559  *           DIR_SearchPath
 560  *
 561  * Implementation of SearchPathA. 'win32' specifies whether the search
 562  * order is Win16 (module path last) or Win32 (module path first).
 563  *
 564  * FIXME: should return long path names.
 565  */
 566 DWORD DIR_SearchPath( LPCSTR path, LPCSTR name, LPCSTR ext,
 567                       DOS_FULL_NAME *full_name, BOOL win32 )
 568 {
 569     LPCSTR p;
 570     LPSTR tmp = NULL;
 571     BOOL ret = TRUE;
 572
 573     /* First check the supplied parameters */
 574
 575     p = strrchr( name, '.' );
 576     if (p && !strchr( p, '/' ) && !strchr( p, '\\' ))
 577         ext = NULL;  /* Ignore the specified extension */
 578     if ((*name && (name[1] == ':')) ||
 579         strchr( name, '/' ) || strchr( name, '\\' ))
 580         path = NULL;  /* Ignore path if name already contains a path */
 581     if (path && !*path) path = NULL;  /* Ignore empty path */
 582
 583     /* Allocate a buffer for the file name and extension */
 584
 585     if (ext)
 586     {
 587         DWORD len = strlen(name) + strlen(ext);
 588         if (!(tmp = HeapAlloc( GetProcessHeap(), 0, len + 1 )))
 589         {
 590             SetLastError( ERROR_OUTOFMEMORY );
 591             return 0;
 592         }
 593         strcpy( tmp, name );
 594         strcat( tmp, ext );
 595         name = tmp;
 596     }
 597
 598     /* If the name contains an explicit path, everything's easy */
 599
 600     if ((*name && (name[1] == ':')) || strchr( name, '/' ) || strchr( name, '\\' ))
 601     {
 602         ret = DOSFS_GetFullName( name, TRUE, full_name );
 603         goto done;
 604     }
 605
 606     /* Search in the specified path */
 607
 608     if (path)
 609     {
 610         ret = DIR_TryEnvironmentPath( name, full_name, path );
 611         goto done;
 612     }
 613
 614     /* Try the path of the current executable (for Win32 search order) */
 615
 616     if (win32 && DIR_TryModulePath( name, full_name, win32 )) goto done;
 617
 618     /* Try the current directory */
 619
 620     if (DOSFS_GetFullName( name, TRUE, full_name )) goto done;
 621
 622     /* Try the Windows system directory */
 623
 624     if (DIR_TryPath( &DIR_System, name, full_name ))
 625         goto done;
 626
 627     /* Try the Windows directory */
 628
 629     if (DIR_TryPath( &DIR_Windows, name, full_name ))
 630         goto done;
 631
 632     /* Try the path of the current executable (for Win16 search order) */
 633
 634     if (!win32 && DIR_TryModulePath( name, full_name, win32 )) goto done;
 635
 636     /* Try all directories in path */
 637
 638     ret = DIR_TryEnvironmentPath( name, full_name, NULL );
 639
 640 done:
 641     if (tmp) HeapFree( GetProcessHeap(), 0, tmp );
 642     return ret;
 643 }
 644
 645
 646 /***********************************************************************
 647  * SearchPathA [KERNEL32.447]
 648  *
 649  * Searches for a specified file in the search path.
 650  *
 651  * PARAMS
 652  *    path      [I] Path to search
 653  *    name      [I] Filename to search for.
 654  *    ext       [I] File extension to append to file name. The first
 655  *                  character must be a period. This parameter is
 656  *                  specified only if the filename given does not
 657  *                  contain an extension.
 658  *    buflen    [I] size of buffer, in characters
 659  *    buffer    [O] buffer for found filename
 660  *    lastpart  [O] address of pointer to last used character in
 661  *                  buffer (the final '\')
 662  *
 663  * RETURNS
 664  *    Success: length of string copied into buffer, not including
 665  *             terminating null character. If the filename found is
 666  *             longer than the length of the buffer, the length of the
 667  *             filename is returned.
 668  *    Failure: Zero
 669  *
 670  * NOTES
 671  *    If the file is not found, calls SetLastError(ERROR_FILE_NOT_FOUND)
 672  *    (tested on NT 4.0)
 673  */
 674 DWORD WINAPI SearchPathA( LPCSTR path, LPCSTR name, LPCSTR ext, DWORD buflen,
 675                             LPSTR buffer, LPSTR *lastpart )
 676 {
 677     LPSTR p, res;
 678     DOS_FULL_NAME full_name;
 679
 680     if (!DIR_SearchPath( path, name, ext, &full_name, TRUE ))
 681     {
 682         SetLastError(ERROR_FILE_NOT_FOUND);
 683         return 0;
 684     }
 685     lstrcpynA( buffer, full_name.short_name, buflen );
 686     res = full_name.long_name +
 687               strlen(DRIVE_GetRoot( full_name.short_name[0] - 'A' ));
 688     while (*res == '/') res++;
 689     if (buflen)
 690     {
 691         if (buflen > 3) lstrcpynA( buffer + 3, res, buflen - 3 );
 692         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 693         if (lastpart) *lastpart = strrchr( buffer, '\\' ) + 1;
 694     }
 695     TRACE("Returning %d\n", strlen(res) + 3 );
 696     return strlen(res) + 3;
 697 }
 698
 699
 700 /***********************************************************************
 701  *           SearchPathW   (KERNEL32.448)
 702  */
 703 DWORD WINAPI SearchPathW( LPCWSTR path, LPCWSTR name, LPCWSTR ext,
 704                             DWORD buflen, LPWSTR buffer, LPWSTR *lastpart )
 705 {
 706     LPWSTR p;
 707     LPSTR res;
 708     DOS_FULL_NAME full_name;
 709
 710     LPSTR pathA = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
 711     LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
 712     LPSTR extA  = HEAP_strdupWtoA( GetProcessHeap(), 0, ext );
 713     DWORD ret = DIR_SearchPath( pathA, nameA, extA, &full_name, TRUE );
 714     HeapFree( GetProcessHeap(), 0, extA );
 715     HeapFree( GetProcessHeap(), 0, nameA );
 716     HeapFree( GetProcessHeap(), 0, pathA );
 717     if (!ret) return 0;
 718
 719     lstrcpynAtoW( buffer, full_name.short_name, buflen );
 720     res = full_name.long_name +
 721               strlen(DRIVE_GetRoot( full_name.short_name[0] - 'A' ));
 722     while (*res == '/') res++;
 723     if (buflen)
 724     {
 725         if (buflen > 3) lstrcpynAtoW( buffer + 3, res, buflen - 3 );
 726         for (p = buffer; *p; p++) if (*p == '/') *p = '\\';
 727         if (lastpart)
 728         {
 729             for (p = *lastpart = buffer; *p; p++)
 730                 if (*p == '\\') *lastpart = p + 1;
 731         }
 732     }
 733     return strlen(res) + 3;
 734 }
 735
 736